return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H3NO (Nitrosoethylene)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-207.965224
Energy at 298.15K 
HF Energy-207.965224
Nuclear repulsion energy104.822105
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3246 3140 0.42 59.58 0.67 0.81
2 A' 3158 3055 3.72 173.37 0.11 0.20
3 A' 3142 3039 4.46 23.35 0.73 0.84
4 A' 1675 1621 2.10 39.91 0.08 0.15
5 A' 1571 1520 139.58 77.32 0.43 0.60
6 A' 1420 1374 24.72 24.28 0.37 0.54
7 A' 1289 1247 1.44 9.92 0.23 0.38
8 A' 1143 1106 78.52 28.44 0.39 0.56
9 A' 893 864 35.47 0.62 0.74 0.85
10 A' 615 595 1.23 10.42 0.10 0.19
11 A' 354 343 1.04 0.83 0.68 0.81
12 A" 1016 983 13.85 3.92 0.75 0.86
13 A" 1003 970 40.38 0.21 0.75 0.86
14 A" 683 661 0.93 0.58 0.75 0.86
15 A" 181 175 0.08 0.24 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10693.5 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 10346.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/aug-cc-pVTZ
ABC
1.79828 0.16990 0.15524

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.202 1.220 0.000
C2 0.000 0.649 0.000
N3 -0.046 -0.774 0.000
O4 -1.169 -1.233 0.000
H5 2.090 0.603 0.000
H6 1.322 2.294 0.000
H7 -0.949 1.175 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 O4 H5 H6 H7
C11.33092.35243.41181.08191.08022.1514
C21.33091.42332.21532.09082.11061.0852
N32.35241.42331.21342.54153.35892.1479
O43.41182.21531.21343.74094.31792.4181
H51.08192.09082.54153.74091.85723.0927
H61.08022.11063.35894.31791.85722.5318
H72.15141.08522.14792.41813.09272.5318

picture of Nitrosoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 117.287 C1 C2 H7 125.552
C2 C1 H5 119.766 C2 C1 H6 121.823
C2 N3 O4 114.086 N3 C2 H7 117.161
H5 C1 H6 118.411
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.653      
2 C -0.085      
3 N -0.058      
4 O -0.392      
5 H 0.384      
6 H 0.291      
7 H 0.513      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.468 3.017 0.000 3.355
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.007 -0.018 0.000
y -0.018 -23.676 0.000
z 0.000 0.000 -23.939
Traceless
 xyz
x 0.800 -0.018 0.000
y -0.018 -0.203 0.000
z 0.000 0.000 -0.597
Polar
3z2-r2-1.194
x2-y20.669
xy-0.018
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.471 2.091 0.000
y 2.091 7.227 0.000
z 0.000 0.000 3.910


<r2> (average value of r2) Å2
<r2> 76.158
(<r2>)1/2 8.727